Server Crash

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 11/24/12 7:34 PM
Description: loading nbt data

java.io.EOFException: Unexpected end of ZLIB input stream
	at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:240)
	at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
	at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:116)
	at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
	at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
	at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
	at java.io.DataInputStream.readFully(DataInputStream.java:195)
	at java.io.DataInputStream.readUTF(DataInputStream.java:609)
	at java.io.DataInputStream.readUTF(DataInputStream.java:564)
	at bu.b(SourceFile:90)
	at bh.a(SourceFile:33)
	at bu.b(SourceFile:95)
	at br.a(CompressedStreamTools.java:126)
	at br.a(CompressedStreamTools.java:33)
	at portalgun.common.PortalGun.loadList(PortalGun.java:637)
	at portalgun.common.core.EventHandler.onWorldLoad(EventHandler.java:90)
	at net.minecraftforge.event.ASMEventHandler_100_EventHandler_onWorldLoad_Load.invoke(.dynamic)
	at net.minecraftforge.event.ASMEventHandler.invoke(ASMEventHandler.java:35)
	at net.minecraftforge.event.EventBus.post(EventBus.java:103)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:278)
	at hg.c(DedicatedServer.java:153)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:454)
	at fp.run(SourceFile:818)

Relevant Details:
- Minecraft Version: 1.4.2
- Operating System: Linux (amd64) version 2.6.32-042stab061.2
- Java Version: 1.7.0_05, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 418466600 bytes (399 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
- JVM Flags: 2 total; -Xms512M -Xmx1G
- AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- FML: ~ERROR~ NullPointerException: null
- Tag name:
- Tag type: 10
- Is Modded: Definitely; 'forge,fml'
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- Player Count: 0 / 20; []
- World world Entities: 8 total; [oi['Chicken'/0, l='world', x=1567.50, y=32.00, z=-411.50], oi['Chicken'/1, l='world', x=1566.50, y=34.00, z=-414.50], qa['Zombie'/2, l='world', x=253.67, y=30.00, z=255.78], EntityTFSwarmSpider['Swarm Spider'/3, l='world', x=251.40, y=30.00, z=252.40], qa['Zombie'/4, l='world', x=255.94, y=30.00, z=250.45], EntityTFSwarmSpider['Swarm Spider'/5, l='world', x=248.34, y=28.00, z=255.40], EntityTFTinyBird['Tiny Bird'/6, l='world', x=230.84, y=29.00, z=251.46], EntityTFQuestRam['Questing Ram'/7, l='world', x=1030.91, y=41.00, z=-240.96]]
- World world Players: 0 total; []
- World world Chunk Stats: ServerChunkCache: 5 Drop: 0
- Type: Dedicated Server